Dynamoelectric machinery utilizing
superconductive windings

ABSTRACT

IRON OR OTHER FERROMAGNETIC MATERIAL IS UTILIZED IN THE MAGNETIC CIRCUIT OF DYNAMOELECTRIC MACHINES HAVING SUPERCONDUCTIVE FIELD OR EXCITATION WINDINGS. IN DC MACHINES, A STATIONARY SALIENT POLE FIELD STRUCTURE WITH A SUPERCONDUCTIVE MAIN FIELD WINDING IS UTILIZED. AN ARMATURE WINDING IS WOUND ABOUT A SMOOTH ROTOR. IN AC MACHINES, A FERROMAGNETIC STRUCTURE THAT ENCLOSES AND ROTATES WITH A SUPERCONDUCTIVE EXCITATION WINDING IS UTILIZED. THE FERROMAGNETIC STRUCTURE MAY INCLUDE EITHER SALIENT POLES INTERCONNECTED BY FERROMAGNETIC SHUNTS OR A SLOTTED OR TOOTHER ROTOR.

)(R T gluaog Dec. 4, 1973 c. J. MOLE ET AL T917,006

DYNAMOELECTRIC MACHINERY UTILIZING SUPERCONDUCTIVE WINDINGS Filed Jan. 38, 1973 4 Sheets-Sheet l Dec. 4, 1973 c. J. MOLE ET AL T9l7,006

DYNAMOELECTRIC MACHINERY UTILIZING SUPERCONDUGTIVE WINDINGS Filed Jan. 29, 1973 4 Sheets-Sheet 2 BI 75 77 I3' FIG. 3.

FIG. 4.

Dec. 4, 1973 c. J. MOLE ET AL T917,006

DYNAMOELECTRIC MACHINERY UTILIZING SUPERCONDUCTIVE WINDINGS Filed Jan. 29, 1973 4 Sheets-Sheet 5 Dec. 4, 1973 c. J. MOLE ET AL T9 l7,006

DYNAMOELECTRIC MACHINERY UTILIZING SUPERCONDUCTIVE WINDINGS Filed Jan. 2t) 1973 4 Sheets-Sheet 4.

FIG. 6.

DEFENSIVE PUBLlCATlQN UNITED STATES PATENT OFFICE iPubllshed at the request of the applicant or owner in accordance with the Notice of Dec. :16, 1969, 869 0.G. 687. The abstracts oi? Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading 0! each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally flied. The flies of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Olllce makes no assertion as to the novelty of the disclosed subject matter PUBLISHED DECEMBER 4, 1973 T917,006 DYNAMOELECTRIC MACHINERY UTILIZING SUPERCONDUCTIVE WINDINGS Cecil J. Mole, Monroeville, and Robert F. Edwards, Murrysville, Pa., assignors to Westinghouse Electric Corporation, Pittsburgh, Pa.

Filed Ian. 29, 1973, Ser' No. 327,540 Int. Cl. H02k 9/00 US. Cl. 310-52 4 Sheets Drawing. 36 Pages Specification Iron or other ferromagnetic material is utilized in the magnetic circuit of dynamoelectrie machines having super= conductive field or excitation windingso In DC machines, a. stationary salient pole field structure with a supercom ductive main field winding is utilized An armature wind ing is wound about a smooth rotor In AC machines, a ferromagnetic structure that encloses and rotates with a superconductive excitation winding is utilized. The fer romagnetie structure may include either salient poles in= tercounected by ferromagnetic shunts or a slotted or toothed rotor, 

